This has not helped me. I installed a well-known anti-virus program I cannot name due to your rules and things worked fine for some time. I uninstalled it today replacing it with another program I also cannot name (though I am posting in the correct topic) due to your rules.

I gave a precise and concise description of my problem but was falsely told I was trying to advertise another program. Needless to say this has left me unable to describe my problem other than very vaguely, and a little unhappy. I was told to post here if it didn't solve my problem and it didn't.

If you have AVG installed, the steps above should cover the issue. Be sure to test them in a new Sandbox with default settings (you can also try deleting the contents of your current one, to see if that helps).
If you are using a different antivirus, please let us know which one, I believe your last post mentioned BitDefender, we have a specific fix for that one:

Free version:viewtopic.php?f=11&t=21539&start=165#p128854
If you have the paid version, the workaround is the same, except for:
WriteFilePath=C:\Program Files\Bitdefender\* (instead of WriteFilePath=C:\Program Files\Bitdefender Antivirus Free\*)

If you are still experiencing problems, be sure to have fully uninstalled your previous antivirus software (many provide a removal tool, as there might be leftovers), then reboot and test the steps in a new sandbox with default settings.

PS: You can mention any software you need to in order for us to troubleshoot your problem. Just make sure to run a search and post in an existing thread when there is one. Otherwise, feel free to start a new one.
If you have any questions regarding approvals, shoot me a PM and we will clarify the process .

If you have AVG installed, the steps above should cover the issue. Be sure to test them in a new Sandbox with default settings (you can also try deleting the contents of your current one, to see if that helps).
If you are using a different antivirus, please let us know which one, I believe your last post mentioned BitDefender, we have a specific fix for that one:

Free version:viewtopic.php?f=11&t=21539&start=165#p128854
If you have the paid version, the workaround is the same, except for:
WriteFilePath=C:\Program Files\Bitdefender\* (instead of WriteFilePath=C:\Program Files\Bitdefender Antivirus Free\*)

If you are still experiencing problems, be sure to have fully uninstalled your previous antivirus software (many provide a removal tool, as there might be leftovers), then reboot and test the steps in a new sandbox with default settings.

PS: You can mention any software you need to in order for us to troubleshoot your problem. Just make sure to run a search and post in an existing thread when there is one. Otherwise, feel free to start a new one.
If you have any questions regarding approvals, shoot me a PM and we will clarify the process .

Would this setting mean all sandboxed applications can write to the real Bitdefender Free folder (meaning, write outside sandbox). I assume any sandboxed application writing malicious files to such a folder would still be sandboxed and prevented from doing real damage to the system, unless I tried to actually execute the dropped file outside the sandbox?